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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1982379Generated: November 1, 2026

Chloroform → HCID 23316382, compound

https://huagongshe.com/reaction/1982379

Reaction equation

Participants

RoleNameHCIDCharge
ReactantChloroformHCID 6212—
ReactantTriethylamineHCID 8471—
ReactantPhosphorus tribromideHCID 24614—
ReactantHCID 86740862HCID 86740862—
SolventWaterHCID 962—
ProductHCID 23316382HCID 2331638285%

Reaction Steps

To chloroform (300 ml), 4-chloro-2-(4-chloro-α-hydroxybenzyl)-isonicotinanilide (12.4 g) and triethylamine (5.0 ml) were added. With stirring and under cooling with ice, phosphorus tribromide (9.1 g) was added slowly, and the stirring was continued for 1 hour. Following another 3-hour stirring at room temperature, the reaction mixture was poured into water. The chloroform layer was thoroughly washed with water and subsequently dried. The chloroform was completely distilled off under vacuum. Upon recrystallization from a mixed solvent of ethyl acetate and n-hexane, the titled compound was obtained in an amount of 10.1 g (yield: 85%). m.p. 140°-141° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04596801
Source datasetuspto-grants-1986_06
ORD IDord-75301921d7ab4bba90cab30a240f9bb4
Source noteuspto-grants-1986_06